From 00:00 on 20.07 till 23:59 on 21.07 (Moscow time) win as many times as you can on Arenas.

Three winners from each server (RU, Steam PvP, Steam PvE), who have get the most wins, will receive prizes:

Gyurza Backpack (30 days)
Injector with Purified "Hellcat" - 10 pcs
Injector with Purified "Ryabinovka" - 10 pcs
Injector with Purified "Brusnikovka" - 10 pcs

In addition, any participant from RU and Steam PvP will receive 40 "sZone" pins for every 100 wins, while any participant from Steam PvE server will get 20 "sZone" pins for every 50 wins.

Good luck!